Lamp



FIG. 1 is a perspective front view from above of a lamp;

FIG. 2 is a rear view thereof;

FIG. 3 is a perspective rear view from below thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a perspective rear view from above thereof; and,

FIG. 7 is a top view thereof.

In the drawings, the broken lines depict portions of the lamp that form no part of the claimed design. 

CLAIM The ornamental design for a lamp, as shown and described. 